Problems

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Submissions Users
Name   Total Acc. Ratio Fastest Total Acc. Ratio Difficulty
0-1 Sequences 10007 1504 15% 0.00 1984 1028 52% 5.7
10 Kinds of People 23336 4772 20% 0.01 4015 2916 73% 4.2
2048 9488 4369 46% 0.00 4189 3595 86% 2.3
2, 4, 6, Greaaat 556 89 16% 0.15 55 30 55% 9.0
3D Printed Statues 12157 5612 46% 0.00 5207 4672 90% 1.9
3D Printer 879 149 17% 0.00 361 113 31% 8.8
3-Sided Dice 2665 218 8% 0.00 434 155 36% 8.6
4 thought 10613 3608 34% 0.00 3508 2960 84% 2.3
A1 Paper 6049 1820 30% 0.00 1791 1427 80% 3.6
Aaah! 31913 14833 46% 0.00 13265 12384 93% 1.5
Abandoned Animal 2218 479 22% 0.03 557 404 73% 5.2
ABC 16337 7444 46% 0.00 7018 6363 91% 2.0
Ab Initio 1400 243 17% 0.09 205 120 59% 7.8
Above Average 10888 4471 41% 0.00 4303 3855 90% 2.1
A+B Problem 8769 863 10% 0.03 1229 411 33% 8.3
A Brief Gerrymander 502 102 20% 0.12 91 44 48% 8.8
Abstract Art 393 127 32% 0.00 105 81 77% 5.4
Abstract Painting 535 220 41% 0.00 187 149 80% 4.5
Absurdistan Roads II 669 228 34% 0.00 224 150 67% 6.9
Absurdistan Roads III 1641 472 29% 0.02 445 338 76% 5.6
Access Points 450 157 35% 0.01 149 115 77% 5.9
Accounting 648 258 40% 0.02 186 147 79% 4.1
A Classy Problem 11140 2884 26% 0.01 2502 1934 77% 4.2
ACM Contest Scoring 7618 4765 63% 0.00 4257 4019 94% 1.5
Add 'Em Up! 1521 399 26% 0.01 403 300 74% 4.4
Adding Words 12357 3038 25% 0.00 2899 2273 78% 3.4
A Different List Game 7331 510 7% 0.00 946 184 19% 9.2
A Different Problem 35975 13245 37% 0.00 12146 10531 87% 2.3
Adjoin the Networks 2306 608 26% 0.00 512 407 79% 5.7
Administrative Difficulties 1519 304 20% 0.03 329 226 69% 6.2
Ads 776 69 9% 0.00 130 46 35% 5.9
Advanced Causal Measurements 124 39 31% 0.10 37 30 81% 6.6
Adventure Begins 301 94 31% 0.06 100 75 75% 5.4
Adventures in Moving -- Part IV 1614 362 22% 0.00 309 262 85% 4.5
A Favourable Ending 1822 487 27% 0.00 456 354 78% 4.5
A Feast For Cats 2946 1114 38% 0.00 789 675 86% 3.8
A Flea on a Chessboard 843 169 20% 0.01 176 122 69% 5.4
A Horse Shoe-In 85 8 9% 0.45 13 7 54% 8.2
AI Jeopardy 460 52 11% 0.02 56 39 70% 7.0
Air Conditioned Minions 5995 1733 29% 0.00 1800 1375 76% 4.0
Airline Hub 2247 498 22% 0.01 435 260 60% 6.6
Airport Coffee 966 207 21% 0.08 197 140 71% 6.9
Airport Construction 3571 455 13% 0.02 385 205 53% 7.7
Airport Logistics 67 15 22% 0.00 22 15 68% 7.4
Airports 491 151 31% 0.11 132 95 72% 6.7
Akcija 8483 3819 45% 0.00 3469 3101 89% 1.9
Aladin 779 78 10% 0.10 130 30 23% 8.5
Alchemy 153 32 21% 0.02 40 23 57% 7.9
Alea iacta est 45 16 36% 0.19 20 15 75% 6.6
Alehouse 330 118 36% 0.03 101 74 73% 6.1
Alex and Barb 650 223 34% 0.00 260 198 76% 3.4
Alice in the Digital World 5464 1363 25% 0.01 1233 978 79% 3.6
Alien Codebreaking 271 16 6% 3.23 45 13 29% 8.7
Alien Numbers 2671 1418 53% 0.00 1381 1266 92% 1.9
A List Game 9707 2901 30% 0.00 2774 2339 84% 3.0
All about that base 3035 1213 40% 0.00 1177 995 85% 2.9
All Different Directions 1555 697 45% 0.00 659 584 89% 2.6
Allergy Test 603 155 26% 0.00 191 96 50% 7.7
All Friends 1094 207 19% 0.00 188 101 54% 8.8
All is Well 91 28 31% 0.03 26 24 92% 4.6
All Just A Dream 2399 617 26% 0.05 464 360 78% 5.0
All Kill 59 46 78% 0.00 37 31 84% 4.7
Alloys 467 153 33% 0.00 167 137 82% 4.3
All Pairs Shortest Path 12018 2257 19% 0.00 1432 1029 72% 5.2
Almost Perfect 9818 2262 23% 0.00 2359 1883 80% 3.0
Almost Union-Find 8530 1490 17% 0.02 1384 813 59% 5.8
Alphabet 2086 1069 51% 0.00 1016 861 85% 3.1
Alphabet Animals 2932 885 30% 0.00 825 675 82% 3.1
Alphabet Spam 9439 5857 62% 0.00 4868 4679 96% 1.4
Alternating Current 636 621 98% 0.00 101 100 99% 1.3 - 7.8
Alternative Anagram 211 76 36% 0.00 61 50 82% 6.0
Alternative Bracket Notation 211 91 43% 0.00 97 81 84% 5.0
Altruistic Amphibians 487 128 26% 0.22 110 81 74% 5.4
Amalgamated Artichokes 4535 2040 45% 0.01 1794 1579 88% 2.6
Amanda Lounges 1604 477 30% 0.03 423 340 80% 5.4
A Mazing! 3520 892 25% 0.09 362 270 75% 5.5
Amazing Adventures 392 109 28% 0.02 123 89 72% 6.4
Amazing Race 394 99 25% 0.29 104 73 70% 7.4
Ambiguous Result 271 61 23% 0.02 92 58 63% 7.6
Amsterdam Distance 1843 878 48% 0.00 907 766 84% 2.7
A Multiplication Game 1052 429 41% 0.00 453 354 78% 4.2
Anagram Counting 4267 1683 39% 0.00 1627 1374 84% 2.7
Andrew the Ant 360 101 28% 0.05 110 85 77% 4.1
A New Adventure 1301 195 15% 0.00 203 143 70% 5.9
A New Alphabet 12396 5590 45% 0.00 5222 4820 92% 1.8
An I for an Eye 973 288 30% 0.00 323 247 76% 4.5
Animal Classification 1625 378 23% 0.03 323 216 67% 6.8
An Industrial Spy 1988 1088 55% 0.02 855 748 87% 2.9
Another Brick in the Wall 3701 1889 51% 0.00 1837 1679 91% 2.0
Another Candies 9066 2510 28% 0.00 2561 2138 83% 2.5
Another Coin Weighing Puzzle 456 134 29% 0.00 110 95 86% 4.6
Another Dice Game 113 74 65% 0.00 71 62 87% 4.3
Another Query on Array Problem 1813 228 13% 0.05 363 162 45% 7.8
Antenna Placement 172 72 42% 0.00 57 44 77% 6.8
Anthony and Cora 1035 279 27% 0.00 324 220 68% 5.6
Anthony and Diablo 3834 1403 37% 0.00 1405 1228 87% 2.5
Antiarithmetic? 1859 334 18% 0.01 416 235 56% 7.5
Ants 4287 1920 45% 0.00 1563 1368 88% 2.6
Apaxiaaaaaaaaaaaans! 15341 9156 60% 0.00 8163 7789 95% 1.5
Apostrophe Catastrophe 121 30 25% 0.00 33 21 64% 6.8